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Can't build _hashlib and _ssl optional modules using brew install on Mac OS X #93695

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izumiberat opened this issue Jun 10, 2022 · 1 comment
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Can't build _hashlib and _ssl optional modules using brew install on Mac OS X #93695

izumiberat opened this issue Jun 10, 2022 · 1 comment
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@izumiberat
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izumiberat commented Jun 10, 2022 •
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Documentation
Mac OS Catalina 10.15.7.

I am getting the following message when following the documentation here: https://devguide.python.org/setup/#install-dependencies and running make -s -j2

The necessary bits to build these optional modules were not found:
_hashlib _ssl
To find the necessary bits, look in setup.py in detect_modules() for the module's name.

Could not build the ssl module!
Python requires a OpenSSL 1.1.1 or newer

For some reason, specifying the openssl version in the command line provided in the documentation resolved the issue:
brew install openssl@1.1 xz gdbm
As mentioned by @ezio-melotti in the PR python/devguide#891, it is awkward to have to specify the version of openssl as it should by default install the latest version. It nevertheless did the trick for me. As a test, I uninstalled openssl, and installed it again, without specifying the version in the command line, and this time it worked. It is unclear to me why, certainly some files that were created when installing the specific version.

I am therefore creating PR python/devguide#892 suggesting to specify the version if user faces this current issue.
@izumiberat izumiberat added the docs Documentation in the Doc dir label Jun 10, 2022
izumiberat added a commit to izumiberat/devguide that referenced this issue Jun 10, 2022
@izumiberat
Note to user when modules do not build
f9afc22 
I am using Mac OS Catalina 10.15.7.

To avoid getting the following messages : 
> The necessary bits to build these optional modules were not found:
> _hashlib              _ssl   
as well as:
> Could not build the ssl module!
> Python requires a OpenSSL 1.1.1 or newer

Running `brew install openssl@3` allowed the  _hashlib _ssl modules to build, but as suggested in a comment by @ezio-melotti it seemed strange that the version needed to be specified. 

I am therefore updating the documentation by leaving 
`brew install openssl` rather than `brew install openssl@3 ` but I am adding a note saying that if user gets the message 
> Could not build the ssl module!
> Python requires a OpenSSL 1.1.1 or newer
that they can try specifying the version of OpenSSL by using `brew install openssl@3`.

Issue number: python/cpython#93695
@izumiberat izumiberat mentioned this issue Jun 10, 2022
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@erlend-aasland
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Fixed by python/devguide#892. Thanks for the report and the PR, Izumi :)

kitarefake added a commit to kitarefake/devguide that referenced this issue Jul 15, 2024
@kitarefake @ezio-melotti
Fix python/cpython#93695: Document how to install openssl v1.1 w/Home…
70bbe45 
…brew (#892)

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
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